New combo aims to free hepatitis b patients from daily pills

NCT ID NCT04980482

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This Phase 2 study tested an experimental drug called AB-729 combined with pegylated interferon and standard antiviral pills in 43 adults with chronic hepatitis B. The goal was to see if this approach could safely lower hepatitis B surface antigen levels and allow some participants to stop their daily antiviral therapy. The study is now complete, and results will show whether this combination can help control the virus long-term.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

AB-729 (an experimental drug) and pegylated interferon alfa-2a

What this could lead to

If successful, this combination could help some people with chronic hepatitis B stop their daily antiviral pills and keep the virus under control.

What could go wrong

This is a small, early Phase 2 study with only 43 participants. It may not lead to lasting virus control, and side effects from the drugs could occur.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

chronic hepatitis B virus infection hepatitis hepatitis B virus infection

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Arensia Exploratory Medicine Moldova

    Chisinau, 2025, Moldova

  • Arizona Liver Health

    Chandler, Arizona, 85224, United States

  • Arizona Liver Health

    Tucson, Arizona, 85712, United States

  • Asan Medical Center

    Seoul, South Korea

  • Chia-Yi Christian Hospital

    Chiayi City, 60002, Taiwan

  • Chung-Ho Memorial Hospital

    Kaohsiung City, 83301, Taiwan

  • Henry Ford Health System

    Detroit, Michigan, 48202, United States

  • ID Care

    Hillsborough, New Jersey, 08844, United States

  • Kaohsiung Chang Gung Memorial Hospital

    Kaohsiung City, 83301, Taiwan

  • Medical Center of Limited Liability Company Harmoniya Krasy

    Kyiv, 01135, Ukraine

  • Nepean Hospital

    Kingswood, New South Wales, 2747, Australia

  • Prince of Wales Hospital, The Chinese University of Hong Kong

    Hong Kong, Hong Kong

  • Pusan National University Hospital

    Pusan, Republic of Korea, 49241, South Korea

  • Queen Mary Hospital

    Hong Kong, Hong Kong

  • Research and Education, Inc.

    San Diego, California, 92105, United States

  • St Vincent's Hospital Melbourne

    Melbourne, Victoria, 3065, Australia

  • University of Miami Miller School of Medicine

    Miami, Florida, 33136, United States